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MEDIUMMCQ SINGLEJEE Mains ChemistryInorganic ChemistryPeriodic PropertiesIonization Enthalpy

The maximum tendency to form uni-positive ion is for the element which has the following electronic configuration

A.1s2, 2s2, 2p6, 3s2
B.1s2, 2s2, 2p6, 3s2, 3p1✓ Correct
C.1s2, 2s2, 2p6
D.1s2, 2s2, 2p6, 3s2, 3p3
Explanation

Formation of uni-positive means, atom can lose one electron and get stable electronic configuration. i.e. 2 2 6 2 1 1 2 2 3 3 s s p s p After losing one electron it becomes stable configuration i.e. 2 2 6 2 1 2 2 3 s s p s It is fully filled orbital.

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